I started having problems with my brakes. When I step on the brake the pedal would go almost all the way to the floor. I would react by pumping the brake which would make them work. I didn't drive with the brakes doing that very long because I took the car to a repair shop and I spent 450 dollars on brake work with being told that the problem was with the ABS system and the disabled the ABS system so that it didn't interfere with stopping the car. There have been recalls on other ford products because of ABS problems. The problem occurred while I was driving every time I wanted to stop and when I stopped for a light I felt like the brakes might quit working and the car could enter the intersection.
2008 Mercury Mariner brakes complaints
Page 2 of 2: complaints 11 to 35 of 35, newest first, as owners wrote them.
Brakes suddenly stopped working while my 17 year old daughter was driving. A message appears 'regen brakes disabled, check brake system'. Went to dealership and was told hcu and master cylinder needs to be replaced $4000 repair. Not acceptable seeing so many complaints of this issue that ford has not yet issued a recall.
My 17 year old daughter came home saying a message was on her dash about her brakes in our 2008 mercury mariner hybrid. I was about to leave so I decided to take her car, as soon as I pulled out of the driveway and started down the hill we live on, I noticed the brakes didn't feel right, I pressed all the way down to get the car to slowly come to a stop, as I did this, I noticed a warning sound and the message on the screen said check brake system, regen brakes disabled. I immediately turned the car around and went home, when trying to stop in our driveway, again the brakes were not working properly causing us to almost hit the other car in the driveway. This is extremely concerning as this car is our 17 year old daughters car. Once you get the car to stop, if the car is powered off for a few minutes and back on the brakes work again. This is a safety issue and seems to be a common problem. This happened yesterday 5/16/2020, the car has 120k miles.
Hcu (hydraulic control unit) failure meaning my hybrid vehicle can't brake whether in hybrid mode or normal mode and it's over a $5000 repair. My mariner has been sitting in my driveway for close to 2 years now, unused, because of this known issue.
Brakes are intermittent, ABS light will come on along with red brake light and hybrid regen brakes disabled. Sometimes car stops sometimes car does not stop. I have looked into it and several people have reported failure. I do not understand how such a well documented oe failure can go for so long without rectification.
Tl* the contact owns a 2008 mercury mariner. The contact stated on several occasions while the vehicle was idle or being driven, the steering wheel vibrated abnormally. The contact also stated that when the steering wheel was turned there was there was a hesitation in response to the wheels responding. Additionally, the contact stated that there was a clicking sound in the steering. The contact stated that the clicking sound emitted from the intermittent shaft. The vehicle was taken to an independent mechanic who replaced the brake pads, brake rotors, and provided an alignment. Neither the dealer nor the manufacturer was contacted or informed of the failure. The failure mileage was 103,184.
Abs and regen brakes disabled warning lights went on when starting car from parked position; have been advised by ford dealer and on line reports by car owners that brakes can fail and we should not drive the car. Replacing regen brake system more than 6k ; this is a safety problem requiring manufacturer recall;
The brake light came on and indicated "regen brakes disabled". I braked when I came to a traffic light and ended up skidding into the middle of an intersection. The local ford dealer advised to replace the hcu for $5000. The unit has 55k miles on it. This has continued to happen for the last 2 years, mostly in the summer when it is hot and humid, although just today it happened again (it was 35 degrees all day). I couldn't stop in time and ran off the road onto the median. Some online research has indicated the problem is not with the hcu, but the sensors (replacing the hcu reestablishes a good connection with the sensors)., but the ford dealer knows nothing about this fix because it's much cheaper. So, I have no choice but to continue to drive this train wreck and hope I'm not in a serious accident.
Brake system failure, ABS failure. Half or more of braking power diminishes. While going down the road, vehicles tries stopping itself, creating a front end wobble. When having to use the brakes, tires skid. Cannot stop vehicle quickly, very dangerous. Constant brake smell. Brake pads wear or disintegrate within 3 months. Problem will not go away was intermittent at first, but now constant. Ford dealership reports part is $6200 dollars. The vehicle is not worth that.
The anti-lock brick module has stopped working. The part alone is close to $1,200 to purchase. Upon investigating this problem we find that it is very common and tens of thousands of ford built cars of this vintage have the same issue. Why hasn't there been a recall for such a common and critical issue?
Took to dealer for brake problems. Poor and unpredictable stopping, after over $ 500 repairs to brakes. Worked ok for a week now worst than they were before repairs.brakes cannot be trusted.
Takata recall my ABS light and brake light comes on and if I drive it with these lights on I smell my break pads burning. I took it to ford and they said it was the internal failure of the hydraulic control unit and it would cost me upwards of $5,885.00 to replace and repair the problem. I have searching the internet and there are several other people with the same problem with this vehicle and ford escapes. (which is basically the same vehicle. If there are this many complaints maybe its worth looking into on dots part. It is a safety issue for sure considering my brakes go to the floor when the ABS and brake lights are on. I can turn my SUV off and remove the key and then put the key back in and start it again until the lights go off and I don't have an issue. But when I first get in the vehicle and start it the lights do in fact come on. Please help all consumers with this dangerous situation that should have been recalled already on ford/mercury's hydraulic control unit.
Power brake booster brake system lock on highway. Power steering went out while driving no warning . Almost had accident on snow due to bad. Transmission. Transmission went out on highway. Unable to start car ignition switch.
While driving on the highway check brake system message and brake light comes on vehicle braking becomes very hard to stop. After stopping vehicle and turning vehicle off and on several times brake warning light goes off and vehicle drives normally for a few days than problem comes back. While at a light one day brake warning light came on drove for approximately 1 mile and no brakes at all was able to turn in to a parking lot and apply the emergency brakes to stop. Left vehicle over night the next day turned vehicle on and off several time and brakes began to work. Made appointment with dealer who advised it will be three weeks to get it in. After three weeks to take vehicle in a week later was advised ABS hcu was probably bad. Cost for new ABS hcu module $4700 for the part alone. Picked up vehicle without having it fixed and drove locally for a few weeks with brake in "manual mode" until I tried to stop for a yellow light in the rain and slid through the intersection since only the back brakes works in manual mode. Later ordered a refurbished ABS hcu module cost $1400.00, the ford dealer is the only one who can install unit since the module has to be programed to the vehicle software. Took two weeks to get an appointment dealer had vehicle for another six weeks trying to program and bleed brake system. Dealer finally installed the other ABS hcu unit that was sent to me when I advised the refurbishing company that the dealer was having issues with the first one. Dealer advised that they installed the replacement ABS hcu and replaced the brake lines, and the brakes started to work labor cost $1900.00. I'm glad to be here to report this safety issue the next person would probably not be so lucky.
Abs light along with service brake light came on with no warning resulting in near complete brake loss and nearly striking a person crossing the street.
I had to apply a panic break due to a motorcycle accident in front of my vehicle. The car stopped but the hydraulic hcu/ecu for ABS failed at the spot. I took the vehicle to the ford dealer and received a 1735.00 plus tax estimate to fix it.
This had been a great car for me until today. I learned the hydraulic control unit is bad and will require nearly $5000 to replace. It is not safe to drive. It had 105000 miles. It is not worth much more than $5k. I have no choice but to try and trade the car in. I laterally just gave it to my daughter for college on saturday. She has always loved my car.
Tl* the contact owns a 2008 mercury mariner. The contact stated that while driving at 25 MPH, the brake pedal was depressed but failed to stop the vehicle. The contact stated that the brake pedal required excessive pressure to slow the vehicle. The vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the brakes master cylinder needed to be replaced. The vehicle was repaired however, the failure recurred. The contact also stated that the brake pads were also replaced however, the failure recurred. The contact stated that the failure occurred only when driving while it was raining. The manufacturer was not notified of the failure. The approximate failure mileage was 120,000.
Tl* the contact owns a 2008 mercury mariner. While driving approximately 35 MPH, the brakes were applied but failed to stop the vehicle. There were no warning indicators illuminated. The failure recurred twice. The vehicle was taken to the dealer where it was diagnosed that the brake pads, master cylinder, and brake booster needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The VIN was unknown. The failure mileage was 60,000.
While driving my car stalls without warning then it jerks real hard and takes off so I have to ride the brakes after coming to a stop before I can press the gas peddle it takes off so I ride the brakes. While driving again it picks up speed on its own very scare please help.
Took vehicle to ford dealer to have car inspected was told rotors had to be replaced due to wear brake pads were wearing un evenly car has been serviced by dealer when ever it needed inspection or oil changes uneven wear wasn't seen until warranty had run out the car had lest then 2000 miles on since last inspection. This has happened on other ford vehicles in past pins that brake pads ride on have always been the cause. They are corroded.
Traveling at 35 MPH and up , sometimes the vehicle would shutter and shake. Found a broken ring on the axle caused this problem. Took a few visits to the dealer to find it. It is very scary when it happens and you must pull over and shut the car off. Sometimes it would be weeks before it happened . Also, happened on the highway. This should have been covered under a safety recall. I had to pay for this repair.
2008 mercury mariner. Consumer states safety issues with rotors *tgw the consumer took the vehicle to a mechanic to have the vehicle inspected. The mechanic stated the rotors for the front disc brakes were worn, pitted and rusted and needed to be replaced. It was verified when it was discovered that the brake pedal pulsed at speeds of 30 or 40 MPH. The consumer then took the vehicle to the dealer who then asserted that the mechanic was wrong and that all vehicles have rust on their rotors. The consumer then took the vehicle back to his mechanic because of a continued pedal pulsation beginning at 30- 40 MPH. The consumer then went to another dealership, who did indeed agree that the front rotors were rusted, pitted and unsafe. Also the rear drums were cracked and needed to be replaced. The ABS was inoperative due to the tone rings had fallen off.
In december of 2009 I reported an incidence of unintended acceleration. Since then we have not been using the cruise control much. Yesterday I activated the cruise control at 60mph on a long flat area. There is a mountain pass and curves between that area and our home. I hit the brake and slowed down around the 35 MPH curves. On the down grade I took it out of over drive and dropped down a gear. The road flattens out again at the bottom but I did not reengage the cruise control. At one point at an intersection I had to brake to ten miles per hour or less for an oncoming car. Just after making a left turn onto our street the car began rapidly accelerating on its own. I didn't have my foot on the gas pedal. Since the road is straight I allowed it to accelerate to see what it would do. It went from 10 MPH to 50 MPH before my wife asked, "why are you accelerating? I replied, " I'm not. It's doing it on its own." it disengaged as soon as I hit the brake pedal. There is no way this was caused by a floor mat. I was only going about 10mph when it began accelerating and I took my foot off the pedal. The last time I complained to ford the car was under warranty and had less than 36,000 miles on it. Ford said they couldn't do anything about it since it was intermittent and they hadn't experienced the problem. Another safety problem we have had with the car: when it had 26,000 miles on it the front end began shaking when braking. Ford said the front rotors were warped and resurfaced them under the warranty. They refused to change the pads or install new rotors. About 15,000 miles later it began vibrating again at speeds above 50mph. Now the vibration is severe. We are looking at a complete brake overhaul. We have never detected the brakes being overheated while the car was being driven. Another problem we had was that the trans cooler went out at 26,000 miles. Ford installed a new one under warranty but refused to drain and replace the transmission fluid.
Car had 2,500 miles when both brake lights illuminated and only had manual braking. Car was towed to dealership where they needed to consult with ford specialists to determine the problem because they weren't sure if it was the master cylinder or the brakes. The replacement part had to pulled from the assembly line because the parts were not due until 8-15-2007. Replaced master cylinder on 7-26-2007.
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